[Retracted] Immersive Virtual Reality Teaching in Colleges and Universities Based on Vision Sensors

Table 1

Comparison of mainstream virtual reality indoor positioning technologies.

Technology	Infrared optics	Laser	Electromagnetic	Ultrasonic	Computer vision
Precision	0.1-1 mm	0.1-1 mm	0.1-1 mm	0.1-1 mm	0.1-1 mm
Targeting range	m	m	Radius 3 m	Radius 30 m	Expandable
Features	Disturbed by light and easily blocked	Low cost, poor stability and durability	The equipment is complex and easily affected by metal devices	Affected by temperature, obvious attenuation, high cost	Low stability